baber/WOPTO huggingface dataset:
Patent GB-457653-A (GB)
Title: Improvements in and connected with articulated trailers for road transport and the like
IPC: B62D53/08
Filed: 1935-12-12
Abstract: 457,653. Vehicle couplings and undercarriages. NORTH, O. D., 76, Elm Park Mansions, Park Walk, Chelsea, and HUGH, P. G., and SCAMMELL LORRIES, Ltd., 52, High Holborn, both in London. Dec. 12, 1935, No. 34520. [Classes 103 (v) and 108 (ii)] [See also Group XXXIV] Laterally rockable undercarriage means for supporting the front end of a trailer for steering articulation upon a tractor with means for temporarily supporting the trailer when uncoupled, as described for example, in Specifications 409,417, [Group XXXI], and 457,039, is provided with adjusting means whereby such lateral rockability may be suppressed or reduced when desired. Normally lateral rockability is desired during coupling operations, being suppressed during transport, and the adjustment may be effected automatically when the hand brake control on the trailer is operated. In the form shown, the front ends of the trailer frame longitudinals 1 are connected by a hollow transverse girder 2 of truncated cross-section, dipping towards the centre, and carrying an upper turntable plate 3 to which is attached a rim 4 riding in an annular groove in a lower turntable member 5 provided with brackets 6 through which passes a transverse beam 7 carrying rollers 8 adapted to ride up ramps 9 on the rear end of the tractor. A vertical pin 16, bolted to a strap 23 embracing the beam 7, passes through the centre of the turntable members and the girder 2, a pair of co-operating cam discs 17, 20 being interposed between the girder and nuts 22 on. the upper end of the pin. The lower disc 20 is secured to a saddle 21 on the girder whilst the upper disc is formed with bell-crank arms 13, 14, the brake operating hand lever 12 being attached to the arm 13, the brake rod 23 being coupled through a stirrup 15 and compression spring 26 to the arm 14. The cam surfaces hold the turntable members in engagement during transport, the pressure being relaxed when the arm 12 is moved to apply the brakes, a loose pin 29 being provided to secure the arm at the end of an arcuate guide bar 27. When applied to the oscillatory beam described in Specification 409,417, the vertical pin 16 is pivotally connected to the centre thereof.
Patent GB-900930-A (GB)
Title: Improvements in or relating to tractors
Inventor: FOXWELL WILLIAM JOHN
IPC: B60D1/44
Filed: 1959-10-12
Abstract: 900,930. Tractor draw-gear. FORD MOTOR CO. Ltd. Oct. 12, 1959, No. 34521/59. Class 103(5). A tractor has a draw bar arrangement comprising a bracket 3 mounted forwardly of and beneath the tractor, a pin 2 which may be passed through either of holes 4, 4a in a drawbar 1 and be positioned in the bracket 3 to provide a vertical pivot axis for the bar, and a pin 12 which may be passed through the bracket 3 when the drawbar 1 is not in use to provide a horizontal pivot axis for a vertically movable hitch such as that described in Specification 836,650. In use the drawbar may swing between straight rows of holes in a bracket 5 or be retained by keeper pins 6 on either side, and a plate 10 fixed to the underside of the tractor supports the plate 5 in either of two positions by a pin 7 passed through either of hole pairs 8 or 8a.
Patent GB-973296-A (GB)
Title: Aromatic polymers
IPC: C08G69/12
Filed: 1962-09-10
Abstract: A process for the production of polymers having a recurring unit of the general formula <FORM:0973296/C3/1> , where R is carbonyl or sulphonyl and R1 is hydrogen, halogen, aryl, nitro or an alkyl radical containing from 1 to 3 carbon atoms, comprises mixing water, a proton acceptor and an emulsifying agent to form a basic emulsion, adding to said basic emulsion an aromatic monomer of the general formula <FORM:0973296/C3/2> where A is naphthylene, substituted naphthylene, biphenylene, substituted biphenylene or diphenyl alkane wherein the alkane radical contains from 1 to 3 carbon atoms, X is chlorine, bromine, sulphate or aryl sulphonate, R2 is a carbonyl or sulphonyl halide and R3 is hydrogen, halogen, aryl, nitro or an alkyl radical containing from 1 to 3 carbon atoms, dissolved in a solvent therefore, and stirring until polymerization is complete. Specified solvents for the monomer are tetrahydrofuran, benzene, methylene chloride, chloroform, chlorobenzene, acetone, nitrobenzene, toluene, benzonitrile, acetophenone and acetonitrile.  Specified emulsifying agents are nonyl phenoxy(ethyleneoxy) ethane, sodium lauryl sulphate and the sodium and potassium salts of condensed sulphonic acids. Specified proton acceptors are calcium carbonate, triethylamine, trimethylamine and tripropylamine. Many suitable monomers are specified.  Copolyamides may be made by the inclusion in the reactants of the elements of polyhexamethylene adipamide, polyhexamethylene terephthalamide, polyhexamethylene sebacamide and poly-m-phenylene isophthalamide.  The polymers made by the process of the invention may be blended with the above specified polyamides. The example describes the preparation of a polyamide from 4-amino-41-chlorocarbonylbiphenyl hydrochloride.
Patent GB-487382-A (GB)
Title: Improvements in and relating to plant handling trucks
IPC: B60P1/64
Filed: 1936-12-16
Abstract: 487,382. Vehicle fittings for loading; load-handling machines. WARNER, G. N. Dec. 16, 1936, No. 34615. [Classes 78 (iii) and 78 (iv)] [Also in Group XXXII] A hand truck for transporting machinery, plant, or the like comprises a platform having an upper plain surface, the platform being mounted on wheels at a permanent inclination to the floor and having an extension piece or ramp for extending the surface to the floor, or being mounted upon a wheeled undercarriage adapted to support and convey the load and being displaceable relatively to the undercarriage for extending the platform surface to the floor, whereby the machinery, &c. may be slid from floor level up the platform by tackle or like means secured adjacent the high end of the platform. As shown, the truck comprises a platform 5 of sheet steel braced by longitudinal and transverse members 6 and pivoted towards one end on the wheel axles 7 of an undercarriage 9, the inclination of the platform being adjustable by mechanism comprising a screw 10, Fig. 3, mounted in bearings 11 in the platform traversing nuts 13 thereon, and links 12 pivotally connected at their ends to the nuts and undercarriage. The screw may be actuated from either side of the truck by handles 14 and chain gear 15. The surface of the platform may contain transverse rollers to facilitate the loading, &c. of heavy machinery. A chain block or winch or tackle such as that described in Specification 469,967 for pulling machinery, &c. on to the truck may be supported by a crossbar 19 on a bracket 18 preferably detachably secured on the high end of the truck. A number of crossbars may be provided at different heights on the bracket to adjust the point of attachment of the pulling tackle or the bracket may be provided with a pivotally displaceable arm 20 having a crossbar 21 for attachment of the pulling tackle, A series of apertures in the platform afford a fulcrum for a crowbar for use in unloading the truck. The undercarriage may be fitted with a fixed or hinged handle for moving the truck. As shown, the handle 123 is secured to brackets 24 by pin-and-slot connections 25 so that it may be held in inoperative position by pins 26 engaging recesses 27 on the brackets. Instead of the racking screw and links, the high end of the platform may be connected to one or more hydraulic or compressed-air cylinders, the lowering of the platform under load being effected by releasing liquid or air from the cylinders, a dashpot or cushioning effect being thus produced. Alternatively, a dashpot &c. may be combined with ratchet or screw-operated raising and lowering means. In a modification the platform is attached by linkage, &c. to the rear end of a wheeled truck, the high end of the platform being in sliding engagement with a fixed part of the truck. In a further modification, the undercarriage is dispensed with and the platform provided with castor wheels, &c. at the high end in addition to the wheels 8, a ramp being detachably mounted or hinged on the truck in alignment with the platform.
Patent GB-1061348-A (GB)
Title: Improvements in automatic process control systems
IPC: G05B5/01
Filed: 1965-08-20
Abstract: 1,061,348. Automatic control systems. LEEDS & NORTHRUP CO. Aug. 20, 1965 [Sept. 25, 1964], No.35867/65. Heading G3R. An automatic process control system comprises a controller 20 for controlling a variable of the process 10 in response to an error signal E derived from a summing point 14 which compares the magnitude of the measured variable with a desired magnitude determined by a set point 16, the signal E being applied to the controller 20 by way of the contact 24A of a relay 24 which is operated by a circuit 26 so that the controller 20 is brought into operation only when the error signal exceeds a predetermined limit value for a predetermined length of time, or so that the response of the controller is enhanced when the error signal exceeds the limit value for the said length of time. The circuit 26 may include several sections which become effective when the error signal exceeds different predetermined combinations of limit values and time periods, and suitable arrangements for the circuit 26, which may include an integrator for the error signal, are described with reference to Figs. 2, 3, 7, 8 and 9 (not shown). The operation of the control arrangement as applied to the loadfrequency control of an electrical power generating system is described with reference to Figs. 3, 4 and 5 (not shown). The before-mentioned predetermined period may be established as a continuous function of the error signal.
Patent GB-796670-A (GB)
Title: Improvements in or relating to free-wheel sprockets for bicycles and the like
Inventor: BROWN WILLIAM
IPC: F16D41/30
Filed: 1955-12-06
Abstract: 796,670. Ball bearings. STURMEY ARCHER GEARS, Ltd. Dec. 5, 1956 [Dec. 6, 1955], No. 34902/55. Class 12 (1). In a freewheel sprocket comprising an outer ring 22, carrying teeth 23, mounted on an inner ring 10 by means of a ballbearing 21, the inner race of the ball bearing is in two parts, one, 20, of which is fixed and the other, 19, axially movable and resiliently loaded towards the fixed part. The part 20 is screwed on to the inner ring 10 and the part 19 is slidably mounted on a cylindrical surface 18 of the ring 10. Springs 16 disposed in housings 15 act on the part 19. Pawls 14 and ratchet teeth 24 ensure unidirectional relative rotation of the rings 10, 12. In a modification, the part 20 is made integral with the inner ring 10 and the portion carrying the springs and pawls is screwed on to the ring 10.
Patent GB-294432-A (GB)
Title: Interlocking joints for metallic columns and girders
IPC: E04B1/24
Filed: 1927-12-23
Abstract: 294,432. Wait, W. Dec, 23, 1927. Ironwork, constructional. - Columns and girders are interlocked without the use of bolts or rivets by shaping and slotting the ends of the separate lengths of the column below and above the joint as shown in Figs. 7 and 8, and the ends of the girders as shown in Figs. 5 and 6. The girders 19 are dropped into place on the lower column 11, the slots 21 allowing the web to engage in the slots 15; then the girders 20 are inserted between the column flanges, and locked therein by the upper column 10, the web of which is at right-angles to the web of the lower column 11 The complete joint is shown in plan in Fig. 3. In a modification, a chair 32, Fig. 15, is placed on the lower column 30, and the girders 28 are slotted as shown in Fig. 14 to engage over the ribs 34 on the chair. Fig. 10 shows a plan of this completed joint, the upper column being in section.
Patent GB-302353-A (GB)
Title: Improvements in seed separating method and apparatus
IPC: B03B5/28
Filed: 1928-11-27
Abstract: 302,353. Warrenteed Seed Co., (Assignees of Warren, H. R.). Dec. 15, 1927, [Convention date]. Separating; treatment by damping; treating with solid substances.-Seeds are separated in a gravity liquid wherein the seeds stratify, the resulting strata being removed successively and the seeds therein freed from adhering gravity liquid. Before separation, the seeds may be treated to change the relative buoyancy of different constituents of the mixture. This may be effected by soaking the seeds in water, for example at 80-165‹ F. for 15-25 minutes, or, in the case of seeds which have a coating which becomes sticky when wetted, by wetting the mixture and treating it with a material such as sand which will form a coating on certain of the seeds but not on others. The seeds may be washed before treatment with the gravity liquid, which may be water, alcohol, or preferably salt or sugar solutions. Seeds are admitted to the separating tank A through a funnel 14, Fig. 3, and pass into a basket 20 and thence past a vertically adjustable member 31 to the space between a partition 41 and a basket 46 closed by a valve 55. In this space the seeds may be first treated with warm water from the tank 10 and afterwards with gravity liquid. With the aid of the adjoining tanks and pipe connections, the liquids may be caused to surge up and down through the seeds, and agitation may also be effected by a rotary stirrer 29 surrounding a central pipe 21 having gauze-covered holes 43. Spray pipes for liquid are provided at 56, 58, and for air at 60, and a side pipe 62 open to the air at the top communicates with the tank at 62<1>, 62". After stratification has been completed the valve 55 is raised and the stratum of heaviest seeds is discharged through the pipe 66 into a basket 67 in a chamber 68, Fig. 10, a valve 75 at the bottom thereof being closed. Liquid in the pipe 66 and manifold F is drained through a pipe 73 to a funnel 83, from which, a swinging pipe 84 returns it to the tank 1 - - 8 from which it was taken. The contents of the chamber 67 is then passed through a pipe 76 to a centrifugal drier 78, the liquid from which flows to the funnel 83. The seeds are then washed in the centrifugal by water, the washings being sent to settling and storage tanks 96, 98, and the washed seeds being finally delivered through a swinging pipe 89 to any desired point. The remaining strata of seeds in the separating tanks A are similarly dealt with successively.
Patent GB-191038-A (GB)
Title: Improvements in and relating to electric current amplifiers
IPC: H01J43/02
Filed: 1922-12-23
Abstract: 191,038. British Thomson - - Houston Co., Ltd., (Assignees of Hull, A. W.). Dec. 28, 1921, [Convention date]. Vacuum tubes.- A four-electrode thermionic valve comprises the usual cathode, grid and anode and a slat electrode interposed between the grid and anode, adapted to receive electrons from the cathode and to emit impact or secondary electrons which are attracted to the more positive anode. The input potentials are impressed on the grid circuit, and the amplified output current flows through an indicator in the anode circuit. Fig. 1 shows the circuit, and Fig. 3 is a cross section, of one form of valve. The slat electrode 3 interposed between the grid 2 and anode 4 comprises a number of slats 6 spaced apart and lying in radial planes, as described in Specification 180,655. The circuit between the slat electrode 3 and the filament, includes an adjustable portion of the anode battery 9. The ancde circuit also includes a telephone 11 or other indicator. The electron stream is caused to travel in a curved path by providing a steady axial magnetic field within the valve by means of an external coil, which may be independently energized, or may be connected, as shown at 12, in the anode circuit, the variable component of the anode current being shunted from the coil 12 by a condenser 13. The electrons strike the sides of the slats 6 and by their impact liberate secondary electrons which pass to the anode 4. In a modification the axial magnetic field is not employed, but the slats are placed at an angle to the radial plane, so as to intercept the radially-moving electrons. The circuit of the slat electrode has a negative resistance, which may be balanced by a series positive resistance, as in Specification 15555/15. Specification 188,707 is also referred to.
Patent GB-342035-A (GB)
Title: Improvements in or relating to corsets and corset substitutes
IPC: A41C1/06
Filed: 1929-11-18
Abstract: 342,035. Corsets and corset substitutes. UHLMAN, J., Leinzell, Unterbobingen, Wurtemberg, Germany. Nov. 18, 1929, No. 35182. [Class 141.] A corset substitute comprises a garment of the form shown for enveloping the trunk, including the breasts, and having thigh straps for passing round the inside of the thighs. The brassiere part has press-button fastening elements e, f for shaping the breasts and the lower part has strips g of cloth with elastic portions h passing around the inside of the wearer's thighs and buttoned, preferably, in the inside to the lower edge of the garment.
Patent GB-1536438-A (GB)
Title: Laser apparatus
IPC: G02B27/28
Filed: 1976-08-24
Abstract: 1536438 Lasers UNITED KINGDOM ATOMIC ENERGY AUTHORITY 22 Aug 1977 [24 Aug 1976] 35222/76 Heading H1C In a laser amplifier formed with several amplifying sections 1-4, optical radiation is passed twice through the initial amplifying sections 1, 2 with polarization such as to prevent mutual interference, and makes a single pass through the remaining sections 3, 4, the arrangement thereby utilizing the available power between the signal level and saturation at the beginning of the amplifying process. The incident radiation is initially polarized, and is reflected by mirrors 6 and 12 so as to make a double pass through sections 1 and 2, the plane of polarization being rotated by 90 degrees between the passes by a quarter wave plate 11. After emergence from section 2 the radiation is deflected by a Brewster angle polarization discrimination element 10 towards a mirror 13 which, with mirror 8, directs the deflected radiation through sections 3 and 4 to an exit window 9. An embodiment is described, Fig. 3 (not shown) in which the amplifier forms part of a printing cylinder scanning image-reproduction apparatus.
Patent GB-283208-A (GB)
Title: Improvements in electrolytes for electrolytic rectifiers or the like
IPC: H01G9/02
Filed: 1927-12-30
Abstract: 283,208. Fansteel Products Co., Inc., (Assignees of Engle, E. W.). Jan. 7, 1927, [Convention date]. Electrolytic rectifiers.-To the electrolyte of an electrolytic rectifier comprising lead and tantalum electrodes in sulphuric acid, such as that described in Specification 231,423, is added cobalt, preferably in the form of a salt. As an example, five grammes of cobalt sulphate may be added for every 150 c.c. of acid of specific gravity 1.25.
Patent GB-1480668-A (GB)
Title: Inorganic materials coated with epoxy resins
IPC: B01J20/22
Filed: 1975-08-28
Abstract: 1480668 N,N - bis - (2,3 - epoxypropyl)- diethylaminopropylamine RHONE - POULENC INDUSTRIES 28 Aug 1975 [30 Aug 1974] 35557/75 Heading C2C [Also in Divisions C1 and C3] N,N - bis - (2,3 - epoxypropyl) - diethylaminopropylamine is prepared by the reaction of epichlorhydrin and diethylaminopropylamine in benzene solution, with treatment with NaOH and evaporation of the solvent.
Patent GB-1125024-A (GB)
Title: Improvements in or relating to stenter clips
Inventor: WILLIAMS PETER BYGRAVE
IPC: B29C55/20
Filed: 1966-08-09
Abstract: 1,125,024. Stenter clips. BRITISH CELLOPHANE Ltd. 9 Aug., 1967 [9 Aug., 1966], No. 35670/66. Heading B5B. [Also in Division D1] A stenter clip for gripping a travelling sheet material such as plastics film, comprises a pivoted operative jaw and a movable base jaw, between which the sheet material may be gripped, the pivoted operative jaw being swing- able towards the base jaw substantially in the direction of the transverse pull exerted by the sheet material, the jaws being positioned and constructed such that as the sheet material is progressively gripped between the jaws the gripping surface of the base jaw moves with and towards the gripping surface of the operative jaw until a locking grip upon the sheet material is established. In a preferred embodiment (Fig. 3), a stenter clip 3 consists of a body member 5 having bolt holes 6 by which the clip may be fixed to chains (not shown), an operative jaw 7 pivotably mounted on the body member, the jaw having a longitudinally serrated gripping surface 8, and a base jaw 9 which also has a serrated gripping surface 10. The gripping surface 8 is curved and has a centre of curvature 11 which is offset from the pivot point 12 of the jaw 7 such that the distance between the pivot point and the gripping surface increases as the surface 8 is traversed from left to right as shown in the Figure. Likewise, gripping surface 10 is curved and has a centre of curvature 13 which is offset from the pivot point 14 of the base jaw 9 such that the distance between the pivot point 14 and the gripping surface 10 increases as the surface is traversed from left to right as shown in the Figure. The jaws are opened by pushing the operative jaw back towards the body member against springs 15 and holding it in position by a retaining rail 16 over which an arm 17 of the jaw rides. When the operative jaw is open the base jaw falls back by gravity against a stop screw 18. The jaws are closed by terminating the retaining rail 16 when jaw 7 swings towards the base jaw 9 until the gripping surfaces meet and lock the sheet between them.
Patent GB-1525733-A (GB)
Title: Junction field effect transistors
IPC: H01L29/808
Filed: 1975-08-29
Abstract: 1525733 JUGFETS TOKYO SHIBAURA ELECTRIC CO Ltd 29 Aug 1975 [4 Sept 1974] 35691/75 Heading H1K A vertical type JUGFET is made from a semiconductor body comprising a high and low doped layer of one conductivity type by providing a suitably patterned insulating film containing dopant of opposite type on the lowdoped layer, introducing the dopant from it into the layer to form a gate region defining at least one closed loop and using the film to mask introduction of dopant of the one type into the layer to form a source region within the loop. In the embodiment illustrated in Fig. 4(c) the grid-form gate region 13 is formed by diffusion from a patterned borosilicate glass layer, which is subsequently used to mask diffusion of the source regions in an atmosphere containing phosphorus oxychloride. After formation of an oxide layer over the surface during or after diffusion the oxide and glass layers are apertured and source 19 and gate 18 electrodes provided as shown and a drain electrode on the N+ layer. The highly doped gate contact region 17 is formed by a separate boron diffusion step. In one variant the source regions are diffused from a deposited phosphosilicate layer and in another simultaneously with the gate regions from an arsenosilicate glass layer which may additionally include boron or gallium which diffuses in to convert the source adjacent parts of the channels to # or v type. Such conversion may alternatively be effected by a separate diffusion of an acceptor impurity alone. Thebreakdown voltage of the gate may be increased and its resistance decreased by providing it with a deeper peripheral portion formed in preliminary diffusion, and the breakdown voltage further or alternatively increased by providing around the gate structure in the source diffusion step a heavily doped channel stopper region which is ohmically contacted with a metal electrode which extends over an insulating layer to overlie the outer periphery of the gate region. To enable the drain electrode to be located on the upper surface of the body, leaving the lower surface free for attachment to a heat sink, a heavily doped drain contact region of closed form extending down to the N+ layer 11 may be formed in a preliminary diffusion step, or material removed by etching either to directly expose layer 11 for contacting or to facilitate provision of such a diffused drain contact region.